Showing posts with label reduction. Show all posts
Showing posts with label reduction. Show all posts

Tuesday, February 15, 2011

For sale - recrystallized silicon carbide shelves

Jerry Wagner has for sale 150 recrystallized silicon carbide shelves that measure 19" x 22" x 5/8" thick and weigh approximately 6 lbs. each.  Jerry is asking $150.00 each.  

These are brand new shelves and are excellent for reduction firing.  One note of caution:  In cooling, starting at 500 degrees Centigrade, they need a cooling rate of 25 degrees per half hour to prevent cracking.

You can contact Jerry on his cell at 724 317-9105.

Friday, August 6, 2010

Reduction/oxidation patterns by Michael Coffee


Michael Coffee:  I thought I would post this image showing the obvious effects of Reduction and Oxidation on a glaze and to show how oxidation zones can exist in a reduction firing. The round hole in the bottom of the image is a burner port. The darkened area on the left is the reduction effect on the floor of the kiln and the lighter area to the right is an oxidation effect. If you follow the line between the two effects up to the bottle it lines up with the change in the glaze. The oxidation effect seems to be 1" above the floor only. All the light areas on the walls are due to oxidation.
Michael is a Colorado potter and his website is:
http://www.dmcarts.com